Ten-year-old Chihiro Ogino and her parents are traveling to their new home when her father takes a wrong turn. Thinking that they have found an abandoned amusement park, her father insists on exploring and they cross a dry riverbed. While Chihiro's parents eat at an empty restaurant stall, Chihiro finds an exquisite bathhouse. She meets a young boy, Haku, who warns her to return across the river before sunset. However, Chihiro discovers too late that her parents turned into pigs and she is unable to cross the flooded river.